Revenue Recognition Disaggregation of Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Disaggregation of Revenue [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregated Revenue

The following table presents revenues disaggregated by the major markets we serve:

	Three Months Ended				Twelve Months Ended
	December 31, 2018		December 31, 2017		December 31, 2018		December 31, 2017
Transportation	$	76,729	$	71,566	$	300,124	$	275,251
Industrial	21,164		19,537		86,968		74,605
Medical	11,370		10,474		40,663		35,264
Aerospace & Defense	6,504		4,978		23,323		18,813
Telecom & IT	4,306		4,355		19,405		19,060
Total	$	120,073	$	110,910	$	470,483	$	422,993